Gear mounting



March 12, 1935. A. BROUWER GEAR MOUNTING Filed May 1'7, 1935 2Sheets-Sheet 1 March 12, 1935. A. BRO'UWER 1,993,729

.GEAR MOUNTING Filed May 17, 1935 2 Sheets-Sheet 2 INVEN TOR.

M ATTORNEYS- patented Mar. 12, 1935 GEAR MOUNTING Albert Brouwer,Whitinsville, Mass, assignor to Whitin Machine Works, Whitinsville,Mass, a corporation of Massachusetts Application May 17, 1933, SerialNo. 671,552

1 Claim.

belts or aprons.

It is the object of my invention to provide an improved construction ofsuch geared drawing rolls, by the use of which construction markedeconomy in manufacture is attained. A fur,- ther object is to provide animproved method of manufacturing and assembling such rolls.

My invention further relates to arrangements and combinations of partswhich will be hereinafter described and more particularly pointed out inthe appended claim.

A preferred form of the invention is shown in the drawings, in which iFig. 1 is a plan view of a set of drawing rolls of a long-draft spinningmachine;

Fig. 2 is a sectional end elevation, taken along the line 22 in Fig. 1;

Fig. 3 is an enlarged front elevation of a portion of a geared drawingroll beforethe gear is mounted thereon;

Fig. 4 is a front view of a gear;

Fig. 5 is a side elevation thereof, looking in the direction of thearrow 5 in Fig. 4, and

Fig. 6 is a plan view, partly in section, showing the method ofassembling the gear and roll.

Referring to Figs. 1 and 2, I have shown a series of drawing rollsadapted for use in a longdraft spinning machine and comprising lowerdriven rolls 10, 11, 12 and 13 and upper rolls 14, 15, 16 and 17.

The upper rolls 14, 16 and 17 simply rest on the lower rolls 10, 12 and13 and are frictionall rotated thereby in the usual manner.

The rolls 11 and are connected by gears 20 and 21 so that the upper roll15 is positively driven from the lower roll. These rolls 11 and 15operate long-draft aprons 22 which are guided by rolls 23 in side framemembers 24 in the usual manner.

All of the parts thus far described are in general of the usual type andmy invention relates entirely to the construction and assembly of thegears 20 and 21 with the rolls 11 and 15 respectively.

The details of construction and method of assembly are best shown inFigs. 3 to 6 and will be described with reference to the roll 15 andgear 21, it being understood that the description applies without changeto the construction of the gear 20 and lower roll 11.

Referring to Figs. 3 to 6, the roll 15 is provided with a connectingportion having a pair of parallel annular flanges 31 spaced apart toreceive the gear 21. The gear 21 is formed as shown in Figs. 4 and 5,with segmental side flanges 32 separated by recesses 33. Each gear isalso provided with diametrically opposed slots 34 and is broken into twoseparate pieces along the line of these slots after manufacture thereofand after the forming of the teeth thereon.

The two parts of each gear are kept carefully in associated pairs andare later assembled between the flanges 31 of a selected drawing roll,after which a retaining ring (Fig. 6) is forced over the two parts ofthe gear to hold the parts firmly in assembled relation.

The roll 15 is then mounted in suitable bearingsand positively rotated,while at the same time a pair of flanging or swedging wheels 41 areforced against the edges of the flanges31.

The rolling action of the wheels 41 on the flanges-31 forces the edgesof the flanges inward over the segmental flanges 32 as clearly shown inFig. 6, thereby firmly retaining the gear 21 in assembled positionbetween the flanges 31.

During the flanging operation, portions of the stock of the flanges 31are also forced into the recesses 33 and thereafter prevent relativeangular movement of the gear 21 on the roll 15.

After the gear and roll are thus assembled, the ring 40 is removed andthe complete geared drawing roll appears as shown in'Figs. 1 and 2.

My improved geared roll may thus be manufactured at much less cost thanthe rolls previously used which have been machined from solid pieces ofsteel which were necessarily of the full diameter of the gear andrequired the removal of a very large amount of stock in the manufacturethereof.

Having thus described my invention and the, advantages thereof, I do notwish to'be limited to the details herein disclosed, otherwise than asset forth in the claim, but what I claim is:

A geared drawing roll comprising a roll having a pair of spaced parallelannular flanges integral therewith, and a two-part annular gear mountedbetween said flanges, said gear having side portions of less diameterthan said annular flanges and said annular flanges being displacedtoward each other and overlying said side portions, said side portionshaving recesses therein and said annular flanges having portions ofstock displaced into said recesses to prevent relative rotation. V

ALBERT BROUWER.

